China Factory Direct
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| CAS number | 169556-48-3 |
| Product name | N-BOC-D/L-VALINOL |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradeIndustrial GradeSpecialty Grade |
| Packaging | 25KG/bag |
| Sample | Test Samples Available (Click to Request Samples) |
| COA | View COA |
| Price | Get Quote |
| Supply Type | Bulk / Contract manufacturing / OEM |
| Shipping | FCL / LCL available |
| Payment Terms | Support FOB \ CIF \ EXW quotations, and accept Letter of Credit (L/C). |
| Manufacturer | Greenrock Chemical(China Factory) |
Based on current marketvolatility and material availability.
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
| Industry | Application | Process |
|---|---|---|
| Pharmaceutical Intermediates | Chiral auxiliary or protecting group in chiral drug synthesis, used to construct valine-containing active pharmaceutical ingredients (e.g., protease inhibitors, antimicrobial peptide analogs) | Undergoes amidation with carboxylic acid derivatives under basic conditions, followed by BOC deprotection via acidolysis (e.g., TFA/DCM); commonly employed in asymmetric reduction and chiral resolution steps |
| Organic Synthesis | Chiral ligand precursor or chiral building block for preparing chiral catalysts (e.g., chiral amino alcohol ligands) | Subjected to asymmetric reduction of the corresponding ketone precursor using sodium borohydride or chiral reducing agents; alternatively, derivatized via sulfonylation or alkylation prior to ligand assembly |
| Pesticide Development | Synthesis of chiral agrochemical fungicides or insecticides (e.g., novel target-site compounds featuring β-amino alcohol motifs) | Participates in epoxide ring-opening and nucleophilic substitution reactions to construct chiral side chains; frequently introduced as a structural directing group into the target molecular scaffold |
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantifies main component using reversed-phase HPLC with UV detection at 210 nm based on peak area comparison against reference standard. |
| Chiral Purity | Chiral HPLC | Separates enantiomers on a chiral stationary phase and determines DL-ratio via peak area integration. |
| Residual Solvents | GC-FID | Detects and quantifies volatile organic solvents (e.g., THF, EtOAc, MeOH) using gas chromatography with flame ionization detection. |
| Water Content | Karl Fischer Titration | Measures trace water by coulometric or volumetric titration with iodine generated electrochemically or added reagent. |
| Heavy Metals | ICP-MS | Quantifies elemental impurities (Pb, Cd, Hg, As, etc.) at sub-ppb levels using inductively coupled plasma mass spectrometry. |
| Residual Palladium | ICP-OES | Determines palladium catalyst residue by measuring atomic emission intensity after microwave-assisted acid digestion. |
| Acid Value | Acid-Base Titration | Measures free carboxylic acid or acidic impurities by titration with standardized NaOH solution using phenolphthalein indicator. |
| Optical Rotation | [alpha]D Measurement | Determines specific optical rotation using a polarimeter at 20 C and 589 nm sodium D-line to assess chiral integrity. |
| Melting Point | Capillary Melting Point Apparatus | Identifies purity and identity by observing temperature range of solid-to-liquid transition under controlled heating. |
| Appearance | Visual Inspection | Evaluates physical state, color, and presence of foreign particles or clumping against established visual standards. |
| Particle Size Distribution | Laser Diffraction | Measures size distribution of solid particles in suspension using angular scattering pattern analysis of laser beam. |
| Microbial Limits | Membrane Filtration | Detects aerobic microorganisms by filtration, membrane transfer to culture media, and colony enumeration after incubation. |
| Test Item | Specification |
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| Appearance | White solid |
| Purity | >=98.5% (GC-MS) |
| Water Content (KF) | <=0.5% |
| Melting Point | 62-66°C |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=10 ppm |
| Optical Rotation | +/- 0.5° (c=1, in methanol) |
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| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
1. How do you ensure product quality consistency?
We rely on a mature China-based manufacturing system and implement strict batch control and quality inspection for every shipment. Our production process complies with ISO 9001 standards, and a COA is provided for each batch to ensure consistent and reliable quality.
2. Do you offer competitive pricing for bulk orders?
Yes, as a China-based manufacturer and bulk supplier, we provide tiered pricing based on order volume. We support FOB and CIF quotations, as well as L/C payment terms for large transactions to meet international trade requirements.
3. Can you support large-volume or long-term supply?
We have stable production capacity and a well-established supply chain, enabling continuous bulk supply. We support ton-level and container-level orders, as well as long-term cooperation projects.
4. What is your typical lead time?
For in-stock products, shipment can be arranged within 1–3 days. For bulk packaging or customized orders, lead time depends on the specific quantity and production schedule.
5. What documents do you provide?
We can provide complete documentation upon request, including COA, SDS, TDS, and other compliance certificates, meeting industrial procurement and export requirements.
6. Can you customize product specifications or packaging?
Yes, we support customization of parameters such as purity, impurities, residual solvents, and heavy metals. We also offer various bulk packaging options, including 25kg bags, drums, and IBC tanks, suitable for industrial applications and transportation.
7. What shipping options do you support?
We support both FCL (Full Container Load) and LCL (Less than Container Load) shipments, and can flexibly arrange logistics solutions based on order size to meet bulk chemical export needs.
8. Do you provide technical or application support?
Yes, we provide basic application guidance and technical support based on industry experience to help customers optimize product usage.
9. How do you handle compliance and export regulations?
We are familiar with international trade and export regulations, ensuring all products comply with relevant requirements. We also provide complete documentation to support smooth customs clearance and global delivery.